set up a parametric equation in i and then plot x(i) against y(i)

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Greg Locock

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i don't understand...how can i set parametric equation?..
i can't plot with matlab  in implicit form..but only
plot(x,t)...
oh god!

i find this :
http://www.mathworks.com/access/helpdesk/help/toolbox/mupad/plot/PRIMITIV_Implicit2d.html

but i try the example:
plot(plot::Implicit2d(x^2+y^2-1, x = -1..1, y = -1..1))

and matlab find an error..
>> plot(plot::Implicit2d(x^2+y^2-1, x = -1..1, y = -1..1))
??? plot(plot::Implicit2d(x^2+y^2-1, x = -1..1, y = -1..1))
              |
Error: Unexpected MATLAB operator.

how can i resolve?
thanks

Is this for school?

TTFN

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